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<html lang="en">

<head>
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  <meta http-equiv="X-UA-Compatible" content="IE=edge" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <title>首页</title>
  <link rel="stylesheet" href="./bootstrap/bootstrap.min.css" />
  <link rel="stylesheet" href="./bootstrap/bootstrap-icons.css" />
  <link rel="stylesheet" href="./css/common.css" />
  <style>
    .card-stats .bi {
      width: 50px;
      height: 50px;
      display: block;
      background-color: #e4e4e4;
      color: #fff;
      border-radius: 50%;
      line-height: 50px;
      text-align: center;
      font-size: 24px;
      margin-top: 4px;
    }
  </style>
</head>

<body class="application application-offset">
  <div class="container-fluid container-application">
    <div class="sidenav show" id="sidenav-main">
      <!-- Sidenav header -->
      <div class="sidenav-header d-flex align-items-center">
        <a class="navbar-brand" href="./index.html">
          <span class="logo">·ITCAST·</span>
        </a>
      </div>
      <!-- User mini profile -->
      <div class="sidenav-user d-flex flex-column align-items-center justify-content-between text-center">
        <!-- Avatar -->
        <div>
          <a href="#" class="avatar rounded-circle avatar-xl">
            <img alt="Image placeholder" src="./02.jpg" style="width:120px;height: 125px;" class="" />
          </a>
          <div class="mt-5">
            <h5 class="mb-0 text-white">黑马前端</h5>
            <span class="d-block text-sm text-white opacity-8 mb-3">数据可视化</span>
            <a href="javascript:;" class="btn btn-sm btn-white btn-icon rounded-pill shadow hover-translate-y-n3">
              <span class="btn-inner--text">学前端来黑马</span>
            </a>
          </div>
        </div>
      </div>
      <!-- Application nav -->
      <div class="nav-application clearfix">
        <a href="./index.html" class="btn btn-square text-sm active">
          <span class="btn-inner--icon d-block"><i class="bi bi-house bi-2x"></i></span>
          <span class="btn-inner--icon d-block pt-2">首页</span>
        </a>
        <a href="./student.html" class="btn btn-square text-sm">
          <span class="btn-inner--icon d-block"><i class="bi bi-people bi-2x"></i></span>
          <span class="btn-inner--icon d-block pt-2">学生</span>
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        <a href="javascript:;" class="btn btn-square text-sm">
          <span class="btn-inner--icon d-block"><i class="bi bi-columns bi-2x"></i></span>
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          <span class="btn-inner--icon d-block"><i class="bi bi-files bi-2x"></i></span>
          <span class="btn-inner--icon d-block pt-2">资料</span>
        </a>
        <a href="javascript:;" class="btn btn-square text-sm">
          <span class="btn-inner--icon d-block"><i class="bi bi-receipt bi-2x"></i></span>
          <span class="btn-inner--icon d-block pt-2">就业</span>
        </a>
        <a href="javascript:;" class="btn btn-square text-sm">
          <span class="btn-inner--icon d-block"><i class="bi bi-gear bi-2x"></i></span>
          <span class="btn-inner--icon d-block pt-2">设置</span>
        </a>
      </div>
      <!-- Misc area -->
      <div class="card bg-gradient-warning">
        <div class="card-body">
          <h5 class="text-white">哈喽, 朋友!</h5>
          <p class="text-white mb-4">为什么不现在开始学习前端，创造一些令人惊叹的东西呢？</p>
          <a href="http://itcast.cn" class="btn btn-sm btn-block btn-white rounded-pill" target="_blank">Get started</a>
        </div>
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    <div class="main-content position-relative">
      <nav class="navbar navbar-main navbar-expand-lg navbar-dark navbar-border" id="navbar-main">
        <div class="container-fluid">
          <!-- Navbar nav -->
          <div class="collapse navbar-collapse navbar-collapse-fade" id="navbar-main-collapse">
            <ul class="navbar-nav align-items-lg-center">
              <!-- Home  -->
              <li class="nav-item">
                <a class="nav-link pl-lg-0" href="./index.html"> 首页 </a>
              </li>
              <li class="nav-item">
                <a class="nav-link pl-lg-0" href="./index.html"> 传智教育 </a>
              </li>
              <li class="nav-item">
                <a class="nav-link pl-lg-0" href="./index.html"> 黑马程序员 </a>
              </li>
              <li class="nav-item">
                <a class="nav-link pl-lg-0" href="./index.html"> 文档 </a>
              </li>
            </ul>
            <!-- Right menu -->
            <ul class="navbar-nav ml-lg-auto align-items-center d-none d-lg-flex">
              <li class="nav-item dropdown dropdown-animate">
                <a class="nav-link pr-lg-0" href=".dropdown-menu" role="button" data-toggle="dropdown"
                  aria-haspopup="true" aria-expanded="false">
                  <div class="media media-pill align-items-center">
                    <span class="avatar rounded-circle">
                      <img alt="Image placeholder"
                        src="https://yanxuan-item.nosdn.127.net/8b27deb1670c53e67c42ca3e1ed6fd12.jpg" />
                    </span>
                    <div class="ml-2 d-none d-lg-block">
                      <span class="mb-0 text-sm font-weight-bold" id="username">Admin</span>
                    </div>
                  </div>
                </a>
              </li>
              <li class="nav-item">
                <a class="nav-link pl-lg-0" id="logout" href="javascript:;"> 退出 </a>
              </li>
            </ul>
          </div>
        </div>
      </nav>
      <div class="page-content">
        <!-- Page Title -->
        <div class="page-title">
          <div class="row justify-content-between align-items-center">
            <div class="col-md-6 mb-3 mb-md-0">
              <h5 class="h3 font-weight-400 mb-0 text-white">Dashboard</h5>
              <span class="text-sm text-white opacity-8">上海前端 xx 期</span>
            </div>
          </div>
        </div>
        <!-- charts -->
        <div class="row">
          <div class="col-xl-3 col-md-6">
            <div class="card card-stats">
              <div class="card-body">
                <div class="row">
                  <div class="col">
                    <h6 class="text-muted mb-1">就业薪资</h6>
                    <span name="salary" class="h3 font-weight-bold mb-0 ">15500</span>
                  </div>
                  <div class="col-auto">
                    <i class="bi bi-coin"></i>
                  </div>
                </div>
              </div>
            </div>
          </div>
          <div class="col-xl-3 col-md-6">
            <div class="card card-stats">
              <div class="card-body">
                <div class="row">
                  <div class="col">
                    <h6 class="text-muted mb-1">班级人数</h6>
                    <span name="student_count" class="h3 font-weight-bold mb-0 ">80</span>
                  </div>
                  <div class="col-auto">
                    <i class="bi bi-people"></i>
                  </div>
                </div>
              </div>
            </div>
          </div>
          <div class="col-xl-3 col-md-6">
            <div class="card card-stats">
              <div class="card-body">
                <div class="row">
                  <div class="col">
                    <h6 class="text-muted mb-1">平均年龄</h6>
                    <span name="age" class="h3 font-weight-bold mb-0 ">24.40</span>
                  </div>
                  <div class="col-auto">
                    <i class="bi bi-calendar2-week"></i>
                  </div>
                </div>
              </div>
            </div>
          </div>
          <div class="col-xl-3 col-md-6">
            <div class="card card-stats">
              <!-- Card body -->
              <div class="card-body">
                <div class="row">
                  <div class="col">
                    <h6 class="text-muted mb-1">小组个数</h6>
                    <span name="group_count" class="h3 font-weight-bold mb-0 ">8</span>
                  </div>
                  <div class="col-auto">
                    <i class="bi bi-collection"></i>
                  </div>
                </div>
              </div>
            </div>
          </div>
        </div>
        <div class="row">
          <div class="col col-xl-8">
            <div class="card" id="line" style="height: 400px;"></div>
          </div>
          <div class="col col-xl-4">
            <div class="card" id="salary" style="height: 400px;"></div>
          </div>
          <div class="col col-xl-12">
            <div class="card" style="height: 400px;">
              <div class="card-header">
                <div class="d-flex justify-content-between align-items-center">
                  <h6 class="mb-0">班级每组薪资</h6>
                  <div id="btns">
                    <button type="button" class="btn btn-xs btn-blue">1</button>
                    <button type="button" class="btn btn-xs ">2</button>
                    <button type="button" class="btn btn-xs ">3</button>
                    <button type="button" class="btn btn-xs ">4</button>
                    <button type="button" class="btn btn-xs ">5</button>
                    <button type="button" class="btn btn-xs ">6</button>
                    <button type="button" class="btn btn-xs ">7</button>
                    <button type="button" class="btn btn-xs ">8</button>
                  </div>
                </div>
              </div>
              <div class="card-body p-0" id="lines"></div>
            </div>
          </div>
          <div class="col col-xl-4">
            <div class="card" id="gender" style="height: 500px;"></div>
          </div>
          <div class="col col-xl-8">
            <div class="card" id="map" style="height: 500px;"></div>
          </div>
        </div>
        <!-- footer -->
        <div class="footer pt-5 pb-4 footer-light" id="footer-main">
          <div class="row text-center text-sm-left align-items-sm-center">
            <div class="col-sm-6">
              <p class="text-sm mb-0">© 2022 <a href="https://itcast.cn" class="h6 text-sm" target="_blank">前端学科</a>.
                All rights reserved.</p>
            </div>
            <div class="col-sm-6 mb-md-0">
              <ul class="nav justify-content-center justify-content-md-end">
                <li class="nav-item">
                  <a class="nav-link" href="#">Support</a>
                </li>
                <li class="nav-item">
                  <a class="nav-link" href="#">Terms</a>
                </li>
                <li class="nav-item">
                  <a class="nav-link pr-0" href="#">Privacy</a>
                </li>
              </ul>
            </div>
          </div>
        </div>
      </div>
    </div>
  </div>
  <script src="./bootstrap/bootstrap.min.js"></script>
  <script src="./lib/axios.js"></script>
  <script src="./lib/echarts.min.js"></script>
  <script src="./js/common.js"></script>
  <script src="./lib/china.js"></script>
  <script>
    /* 
     什么情况下 才能让用户直接访问 index.html
       用户登陆了，才可以访问index.html
       如果用户没有登录，不允许用户直接访问 index.html 应该让页面跳转 登录页面
       只要登录成功 本地存储里面 有token
       判断 是否有token
    */

    const token = localStorage.getItem('CMS85')
    if (!token) {
      location.href = './login.html'
    }
    /*1.显示登录的用户
        1.1 获取本地存储的 cms-username 的值
        1.2 获取id-username 的dom元素
        1.3
    
    */
    const username = localStorage.getItem('CMS-USERNAME')
    document.querySelector('#username').innerHTML = username

    /* 
    2.获取学生统计的数据
      2.1发送ajax获取 学生的统计数据
    */

    /* 
      axios 拦截器
        1.请求拦截器
          只要 浏览器向服务器发送给ajax 每一次请求都会先被拦截
        2.响应拦截器
    */
    axios({
      url: '/dashboard',
      // 将token放在请求头里面 携带
      // headers:{
      //   Authorization:localStorage.getItem('CMS85')
      // }
    }).then(res => {
      // 把获取的数据换到页面里面
      const { overview, year, salaryData, groupData,provinceData } = res.data
      for (let k in overview) {
        document.querySelector(`[name=${k}]`).innerHTML = overview[k]
      }
      //  数据由ajax提供
      setLine(year)

      setSalary(salaryData)

      console.log(res.data);

      /* 
     tab栏切换
       1.获取所有的buttom 标签 伪数组
       2.循环注册 点击事件 forEach()
       3.鼠标点击谁 谁高亮显示
       4.排他
     */
      const btns = document.querySelectorAll('#btns button')
      btns.forEach(item => {
        // console.log(item);
        item.addEventListener('click', function () {
          document.querySelector('#btns button.btn-blue').classList.remove('btn-blue')
          item.classList.add('btn-blue')
          /* 
          鼠标点击的时候 btn 让柱状图显示对应组的数据
              1. 获取鼠标点击的button中间的值
              2. 获取到了切换数据 obj对象 通过对象的属性可以找到对应的数据
              3. 让配置对象里面对应的数据 显示成对应组的数据
              4. 重新让echarts实例对象的setOption
          */

          const index = item.innerHTML //button里面的值
          // console.log(index);
          // const groupData = obj[index] //数组
          // // console.log(groupData);
          // option.xAxis.data = groupData.map(item => item.name)
          // option.series[0].data = groupData.map(item => item.hope_salary)
          // option.series[1].data = groupData.map(item => item.salary)
          // // console.log(option.xAxis.data);

          // myChart.setOption(option)
          setBar(groupData[index])


        })
      })

      setBar(groupData[1])

      setGender(salaryData)

      setMap(provinceData)
    })

    /* 
    退出功能
      1. 获取 退出dom元素 注册点击事件
      2. 需要给用户 展示 提示对话框 confirm()
      3. 需要跳转 登录页面 清空 本地存储
  */

    document.querySelector('#logout').addEventListener('click', function () {
      if (confirm('请问是否需要退出？'))
        location.href = './login.html'
      localStorage.clear()
    })

    // 设置薪资走势的折线图 
    const setLine = arr => {
      const myChart = echarts.init(document.querySelector('#line'));

      // 指定图表的配置项和数据
      const option = {
        title: {
          text: '2021全学科薪资走势',
          textStyle: {
            color: 'blue',
            fontSize: 16,
          },
          left: 10,
          top: 15
        },
        // 网格组件
        grid: {
          top: '20%'
        },

        tooltip: {
          trigger: 'axis',
          axisPointer: {
            animation: false
          }
        },
        xAxis: {
          type: 'category',
          data: arr.map(item => item.month),
        },
        yAxis: {
          type: 'value',
          // 分割线样式x
          splitLine: {
            lineStyle: {
              type: 'dashed'
            }
          }
        },
        series: [
          {
            symbolSize: 10,
            lineStyle: {
              width: 4,
              color: {
                type: 'linear',
                x: 1,
                y: 0,
                x2: 0,
                y2: 0,
                colorStops: [{
                  offset: 0,
                  color: 'rgba(76, 133, 249,1)' // 0% 处的颜色
                }, {
                  offset: 0.8,
                  color: 'rgba(74, 205, 245,0.6)' // 100% 处的颜色
                }],
                global: false // 缺省为 false
              }
            },
            data: arr.map(item => item.salary),
            type: 'line',
            smooth: true,
            itemStyle: {
              color: '#59a1f1',

            },
            areaStyle: {
              color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [
                {
                  offset: 0,
                  color: 'rgba(97, 177, 255,0.8)'
                },
                {
                  offset: 0.6,
                  color: 'rgba(97, 177, 255,0)'
                }
              ])
            }
          }

        ]
      };
      // 使用刚指定的配置项和数据显示图表。
      myChart.setOption(option);

    }

    // 饼图
    const setSalary = arr => {
      const myChart = echarts.init(document.querySelector('#salary'));
      const option = {
        title: {
          text: '班级薪资分布',
          textStyle: {
            color: 'black',
            fontSize: 16,
          },
          left: 10,
          top: 15
        },
        tooltip: {
          trigger: 'item'
        },
        legend: {
          left: 'center',
          bottom: '10%',
        },
        series: [
          {
            name: 'Access From',
            type: 'pie',
            radius: ['50%', '64%'],
            center: ['50%', '40%'],
            avoidLabelOverlap: false,
            itemStyle: {
              borderRadius: 20,
              borderColor: '#fff',
              borderWidth: 2
            },
            label: {
              show: false,
              position: 'center'
            },
            labelLine: {
              show: false
            },
            data: arr.map(item => {
              return {
                name: item.label,
                value: item.g_count + item.b_count
              }
            }),
            color: ['#fda224', '#5097ff', '#3abcfa', '#34d39a']
          }
        ]
      }

      myChart.setOption(option);
    }

    // 柱状图
    const setBar = arr => {
      // 默认显示第一组的数据
      // 访问对象的属性值：1.对象名.属性名 2.
      // console.log(obj[1]);
      const myChart = echarts.init(document.querySelector('#lines'));
      const option = {
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            crossStyle: {
              color: '#999'
            }
          }
        },

        xAxis: [
          {
            type: 'category',
            data: arr.map(item => item.name),
            axisPointer: {
              type: 'shadow'
            }
          }
        ],
        yAxis: {
          type: 'value',
          splitLine: {
            lineStyle: {
              type: 'dashed'
            }
          }
        },
        series: [
          {
            name: '期望薪资',
            type: 'bar',
            tooltip: {
              valueFormatter: function (value) {
                return value + ' 元';
              }
            },
            itemStyle: {
              color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [
                { offset: 0, color: 'rgba(61, 232, 171)' },
                { offset: 1, color: 'rgba(61, 232, 171,.5)' }
              ])
            },
            data: arr.map(item => item.hope_salary)
          },
          {
            name: '实际薪资',
            type: 'bar',
            tooltip: {
              valueFormatter: function (value) {
                return value + ' 元';
              }
            },
            itemStyle: {
              color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [
                { offset: 0, color: 'rgba(81, 175, 255,1)' },

                { offset: 1, color: 'rgba(81, 175, 255,.5)' }
              ])
            },
            data: arr.map(item => item.salary)
          },
        ]
      }
      myChart.setOption(option);


    }

    // 男女生饼图
    const setGender = arr => {
      const myChart = echarts.init(document.querySelector('#gender'));
      const option = {
        title: [
          {
            text: '男女薪资分布',
            left: 10,
            top: 10,
            textStyle: {
              fontSize: 16,
            },
          },
          {
            text: '男生',
            left: '50%',
            top: '45%',
            textAlign: 'center',
            textStyle: {
              fontSize: 12,
            },
          },
          {
            text: '女生',
            left: '50%',
            top: '85%',
            textAlign: 'center',
            textStyle: {
              fontSize: 12,
            },
          },
        ],
        tooltip: {
          trigger: 'item'
        },
        color: ['#FDA224', '#5097FF', '#3ABCFA', '#34D39A'],
        series: [
          {
            type: 'pie',
            radius: 50,
            radius: ['20%', '30%'],
            center: ['50%', '30%'],
            datasetIndex: 1,
            data: arr.map(item => {
              return {
                name: item.label,
                value: item.b_count
              }
            })

          },
          {
            type: 'pie',
            radius: 50,
            radius: ['20%', '30%'],
            center: ['50%', '70%'],
            datasetIndex: 2,
            data: arr.map(item => {
              return {
                name: item.label,
                value: item.g_count
              }
            })
          }
        ]
      }
      myChart.setOption(option);
    }

    // 地图
    const setMap = (data) => {
      console.log(data);
      const myEchart = echarts.init(document.querySelector('#map'))
      
      const dataList = [
        { name: '南海诸岛', value: 0 },
        { name: '北京', value: 0 },
        { name: '天津', value: 0 },
        { name: '上海', value: 0 },
        { name: '重庆', value: 0 },
        { name: '河北', value: 0 },
        { name: '河南', value: 0 },
        { name: '云南', value: 0 },
        { name: '辽宁', value: 0 },
        { name: '黑龙江', value: 0 },
        { name: '湖南', value: 0 },
        { name: '安徽', value: 0 },
        { name: '山东', value: 0 },
        { name: '新疆', value: 0 },
        { name: '江苏', value: 0 },
        { name: '浙江', value: 0 },
        { name: '江西', value: 0 },
        { name: '湖北', value: 0 },
        { name: '广西', value: 0 },
        { name: '甘肃', value: 0 },
        { name: '山西', value: 0 },
        { name: '内蒙古', value: 0 },
        { name: '陕西', value: 0 },
        { name: '吉林', value: 0 },
        { name: '福建', value: 0 },
        { name: '贵州', value: 0 },
        { name: '广东', value: 0 },
        { name: '青海', value: 0 },
        { name: '西藏', value: 0 },
        { name: '四川', value: 0 },
        { name: '宁夏', value: 0 },
        { name: '海南', value: 0 },
        { name: '台湾', value: 0 },
        { name: '香港', value: 0 },
        { name: '澳门', value: 0 },
      ]

      // 根据省份的数据 将dataList 里面的value值进行更新
      dataList.forEach(item=>{
         //console.log(item.name)
        //因为地图数据里面的name仅仅是省份的名字
        //服务器给我们省份的数据包含省
        //find()查找数组里面符合的第一个元素 找不到 返回undefined
        // 字符串indexOf('要查找的元素') 如果找得到 返回下标 如果找不到 返回-1
        // pro.name 是地图里面的数据 还是身份数据
        const obj=data.find(pro=>pro.name.indexOf(item.name)!==-1)
        if(obj){
          item.value=obj.value
        }
      })

      let option = {
        title: {
          text: '籍贯分布',
          top: 10,
          left: 10,
          textStyle: {
            fontSize: 16,
          },
        },
        tooltip: {
          trigger: 'item',
          formatter: '{b}: {c} 位学员',
          borderColor: 'transparent',
          backgroundColor: 'rgba(0,0,0,0.5)',
          textStyle: {
            color: '#fff',
          },
        },
        visualMap: {
          min: 0,
          max: 6,
          left: 'left',
          bottom: '20',
          text: ['6', '0'],
          inRange: {
            color: ['#ffffff', '#0075F0'],
          },
          show: true,
          left: 40,
        },
        geo: { // 地理坐标系组件
          map: 'china',
          roam: false,
          zoom: 1.0,
          label: {
            normal: {
              show: true,
              fontSize: '10',
              color: 'rgba(0,0,0,0.7)',
            },
          },
          itemStyle: {
            normal: {
              borderColor: 'rgba(0, 0, 0, 0.2)',
              color: '#e0ffff',
            },
            emphasis: {
              areaColor: '#34D39A',
              shadowOffsetX: 0,
              shadowOffsetY: 0,
              shadowBlur: 20,
              borderWidth: 0,
              shadowColor: 'rgba(0, 0, 0, 0.5)',
            },
          },
        },
        series: [
          {
            name: '籍贯分布',
            type: 'map',
            geoIndex: 0,
            data: dataList,
          },
        ],
      }
      myEchart.setOption(option)
    }

  </script>
</body>

</html>